lengthening its longevity
Installed to oil pmup of oil line behind oil condensor , to remove metal particle as a result of parts attrition in the oil and gum particle resulting from chemical reaction of system media, preventing screw rod wearing out too soon, lengthening its longevity.
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lengthening its longevity
延长其寿命
以上为机器翻译结果，长、整句建议使用 人工翻译 。